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Appendix B • • Technical Reference
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Hardware Cause and Solution:
a Wrong IRQ setting. If the hardware and software IRQ setting do
not match. MOXA driver will use a polling scheme and thus
causes slow operation. Try to match the IRQ settings.
6 Under UNIX, when respawning quite a few number of tty ports,
the following error messages appear: "Time out table overflow",
"File table overflow", "Region table overflow".
Software Cause and Solution:
The above error messages imply that the system resources are
exhausted. User should tune the kernel parameters to a larger value
and rebuild the kernel to be able to accommodate the new
configuration. Refer to UNIX system manual about how to tune the
parameters and rebuild kernel.
"Time out table overflow" : NCALL parameter too small.
"File table overflow" : NFILE or NINODE parameter too small.
"Region table overflow" : NREGION or NPROC parameter too small.
7 Under UNIX, the newly rebuilt kernel could not boot.
Software Causes and Solutions:
The C360 driver might not be built into the new kernel correctly.
a Please use the last good kernel backup to boot again. The kernel
backup in UNIX is /unix.moxa or /stand/unix.moxa.
b Then remove the C360 driver. Refer to Section 4.3 for driver
removal.
c Re-install the C360 driver once more.